"LOS ANGELES Nov 15, 2005 - Scientists have discovered sexually altered fish off the Southern California coast, raising concerns that treated sewage discharged into the ocean contains chemicals that can affect an animal's reproductive system.
So-called intersex animals are not new, but most previous instances were in freshwater. Environmentalists say this is among the first studies to document the effects in a marine environment.
Last year, federal scientists reported finding egg-growing male fish in Maryland's Potomac River. They think the abnormality may be caused by pollutants from sewage plants, feedlots and factories."